トンガ王国住民におけるA型およびB型肝炎マ-カ-

概要

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Randamised 149 dwellers during 15 years or more at Nukualofa, Capital of the Kingdom of Tonga, over 30 years of age, were studied for serological evidence of persistent or past infection with hepatitis A virus or B. Anti-HA was detected in 95.3% by radioimmunoassay. Ten out of 149 subjects (6.7%) were found to be positive for HBsAg, and 3 of them had HBeAg, 6 had anti-HBe, and remaining one did not have both. One of HBeAg-positives was detected a liver injry. Eight out of 10 HBsAg-positive subjects were tested for subtypes of HBsAg. All of them were revealed to have subtype of 'adr'. Anti-HBsAg and anti-HBc were found in 72.5% and 77.9%, respectively. As a total, 90.6% of these subjects showed the evidence of HBV infection. These results indicate that hepatitis A is endemic in the Kingdom of Tonga, as well as hepatitis B.
社団法人日本肝臓学会の論文